11 February 2014, 12:13 PM ET
When under the influence of stress hormones, male Adélie penguins are less vigilant with their chicks compared to parents with lower levels of stress hormones.
10 February 2014, 01:51 PM ET
Rare European eels are thought to cross the Atlantic Ocean to breed, but not all of them finish the ambitious voyage. Some meet their end in the belly of deep-diving whales, new research reveals.
08 February 2014, 09:13 AM ET
Dragonfly mating involves violent battles, flashy courtship dances and heart-shaped coitus.
07 February 2014, 07:38 PM ET
There are alternatives to culling animals in cities, so why does the practice continue?
07 February 2014, 06:48 PM ET
Findings could also explain why they're invisible to night-vision goggles.
07 February 2014, 04:07 PM ET
An independent panel of experts said Friday there are flaws in the science the Fish and Wildlife Service (FWS) used to make its case for ousting gray wolves from the Endangered Species list.
07 February 2014, 01:03 AM ET
Despite a promise not to, Sochi is now methodically killing its street dogs.
07 February 2014, 12:36 AM ET
Monarch numbers are rapidly falling, but what can be done to protect them?
06 February 2014, 02:55 PM ET
Pacific salmon can find their way to their ancestral feeding grounds without any prior travel experience using the Earth's magnetic fields as a guide.
06 February 2014, 01:36 PM ET
The small intestinal section from a mouse is revealed in this fascinating microphotograph. See how incredible image was made.
06 February 2014, 10:20 AM ET
France became the latest country to destroy its stockpile of confiscated ivory, with three tons of it turned to dust during a ceremony in Paris today. The ivory crush follows similar moves by the United States, the Philippines, China and Gabon.
05 February 2014, 05:53 PM ET
Of all of the animals in the animal kingdom, rats may be best suited to repopulation the world in the event of a mass extinction, some scientists say.
05 February 2014, 05:34 PM ET
When selecting a mate, female mice choose males with songs that differ from those of their parents to avoid inbreeding, a new study finds.
05 February 2014, 02:52 PM ET
To give park rangers in Africa an upper hand in the fight against poachers, conservationists are bringing drones to the places where vulnerable elephants and rhinoceroses roam.
05 February 2014, 01:41 PM ET
Woolly mammoths and other ice age beasts dined on nutritious, high-protein wildflower plants known as forbs, new research suggests.
05 February 2014, 01:00 PM ET
Wooly mammoths and other ice age beasts dined on nutritious, high-protein wildflower plants known as forbs, new research suggests.
05 February 2014, 12:02 PM ET
Florida officials say they've bagged one of the biggest Burmese pythons ever found in the state: an 18.2-foot-long female weighing some 150 pounds. The snakes are an invasive species that are wiping out wildlife in the Everglades.
05 February 2014, 10:46 AM ET
The desire to get close to wild animals may fulfill humans' deep need to connect with the natural world, but experts say it can be bad for both the humans and the animals involved.
05 February 2014, 10:45 AM ET
Killer whale populations around the world may have suffered steep declines during the last Ice Age, when food for these top predators may have been scarce, a new study finds.
05 February 2014, 10:04 AM ET
A cold-water coral that thrives in deep, dark water has been found growing offshore Greenland as a reef for the first time.
05 February 2014, 09:43 AM ET
Primates aren't the only animals that communicate with their eyes — jackdaws do it too, a new study finds. This is the first time scientists have shown that animals besides primates use their eyes to communicate.
05 February 2014, 09:42 AM ET
Environmental officials in Namibia are working with the World Wildlife Fund to fly drones over the country's national parks to spot poachers and monitor threatened animals, like elephants and rhinos.
05 February 2014, 08:57 AM ET
Bumblebees are all-star fliers in the insect world, according to a recent study that shows that they are capable of flying at elevations higher than Mt. Everest
04 February 2014, 04:13 PM ET
Bees sense salt with their feet, perhaps explaining why they swarm homeowners' trendy salt-water pools, new research on bee senses suggests. The study might help researchers understand how pesticides harm bees.
04 February 2014, 11:00 AM ET
An explosive eruption buried dinosaurs, mammals and early birds in a lakebed in northern China.
04 February 2014, 11:00 AM ET
A mass grave in a Chinese lakebed contains the extremely well-preserved fossils of dinosaurs, mammals and early birds, but the cause of the animals' death has long puzzled scientists.
03 February 2014, 11:10 PM ET
Meet a parasite that can create its own mobile nursery for its young, a parasite that is thought to be the inspiration behind the chest-bursting xenomorph in the film Alien.
03 February 2014, 03:00 PM ET
Mosquitoes use scent-detecting molecules known as odorant receptors in their antennae. These sensors help mosquitoes "sniff out" sources of blood. Now, researchers have discovered mosquitoes have these same molecules in their sperm as well.
03 February 2014, 01:51 PM ET
The Southwest's small population of endangered Mexican wolves, once driven to the brink of extinction, has increased for the fourth year in a row, according to the U.S. Fish and Wildlife Service.
03 February 2014, 11:03 AM ET
For some spider suitors, the arachnid equivalent of a box of chocolates is an insect wrapped in silk. New research shows it's not just the gift but also the color of the wrapping that can seal the deal among one species.
31 January 2014, 11:25 PM ET
Allegations of abuse at Animal Planet raise questions about wildlife programs.
31 January 2014, 02:14 PM ET
Ants use a certain pattern, or algorithm, to forage for food. This algorithm can be used to tackle many types of problems.